# Relationship history for MSHA mine 0200106

Current hierarchy: **Clariant AG → Clariant Corporation → Cheto Mine 01**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Mc Carrell & Gurley → Cheto Mine 01; 1950-01-01 to 1979-04-30; source msha-controller-operator-history
- **controller_controls_mine:** C E  Gurley et al → Cheto Mine 01; 1950-01-01 to 1979-04-30; source msha-controller-operator-history
- **controller_controls_operator:** C E  Gurley et al → Mc Carrell & Gurley; 1950-01-01 to 1979-04-30; source msha-controller-operator-history
- **operator_operates_mine:** United Catalysts Inc → Cheto Mine 01; 1979-05-01 to 1984-06-06; source msha-controller-operator-history
- **controller_controls_mine:** Sued-Chemie AG → Cheto Mine 01; 1979-05-01 to 1984-06-06; source msha-controller-operator-history
- **controller_controls_operator:** Sued-Chemie AG → United Catalysts Inc; 1979-05-01 to 1984-06-06; source msha-controller-operator-history
- **operator_operates_mine:** Black Rock Construction Inc → Cheto Mine 01; 1984-06-07 to 1992-04-20; source msha-controller-operator-history
- **controller_controls_mine:** Dale  McKinnon → Cheto Mine 01; 1984-06-07 to 1992-04-20; source msha-controller-operator-history
- **controller_controls_operator:** Dale  McKinnon → Black Rock Construction Inc; 1984-06-07 to 1992-04-20; source msha-controller-operator-history
- **operator_operates_mine:** Sud-Chemie Performance Packaging-Div/Sud-Chemie In → Cheto Mine 01; 1992-04-21 to 2014-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Sued-Chemie AG → Cheto Mine 01; 1992-04-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sued-Chemie AG → Sud-Chemie Performance Packaging-Div/Sud-Chemie In; 1992-04-21 to 2014-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Clariant Corporation → Cheto Mine 01; 2014-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Clariant AG → Cheto Mine 01; 2014-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Clariant AG → Clariant Corporation; 2014-06-01 to current/open; source msha-controller-operator-history